Waterloo
One of Sydney's most apartment-intensive suburbs, Waterloo packs 16,379 residents into 1.13 sq km, a density of 14,444.8 people per sq km. Its character is shaped by 91.2% apartments, 74.1% renters and a median age of 33, which is 7 years below the national comparison. Overseas-born residents account for 59.3%, 37.7 percentage points above the national figure, while household income sits at the 75.9th percentile. Compared with nearby Alexandria and Zetland, Waterloo is especially renter-led and compact, with 62.0% working from home. That mix supports local services and short trips, but also means turnover and vacancy deserve attention.
Population
16,379
Median Age
33.0
Household IncomeiMedian weekly household income (ABS Census)
$2,028/wk
DAs (12 months)iDevelopment Applications lodged in the past year
65
For a buyer, Waterloo is primarily an apartment decision rather than a conventional house purchase. Apartments account for 91.2% of dwellings, while separate houses are only 0.5%; 53.4% of homes have 2 bedrooms and 31.5% have 0 or 1. That mix suits singles and couples seeking a smaller footprint, but it makes strata fees, defects, storage and resale competition important checks. Household income is $2,028 a week, mortgage costs are $2,500 a month, and mortgage-to-income is 28.5%, higher than rent-to-income at 26.1%. Compared with a detached-house market, Waterloo rewards building-level due diligence because most buyers are choosing among apartments, not land parcels.
For Buyers
For a buyer, Waterloo is primarily an apartment decision rather than a conventional house purchase. Apartments account for 91.2% of dwellings, while separate houses are only 0.5%; 53.4% of homes have 2 bedrooms and 31.5% have 0 or 1. That mix suits singles and couples seeking a smaller footprint, but it makes strata fees, defects, storage and resale competition important checks. Household income is $2,028 a week, mortgage costs are $2,500 a month, and mortgage-to-income is 28.5%, higher than rent-to-income at 26.1%. Compared with a detached-house market, Waterloo rewards building-level due diligence because most buyers are choosing among apartments, not land parcels.
For Investors
Waterloo's investment case is driven by tenant depth, apartment supply and ongoing development, but vacancy is the main counterweight. Renters make up 74.1% of occupied dwellings, exceeding the 6.3% owned outright and 18.1% mortgaged shares, while weekly rent is $530. Vacancy is 14.4%, so leasing demand should be tested by building, layout and condition rather than assumed from the renter majority. Sixty-five development applications in 12 months point to continuing construction and possible competition from newer stock. The 3.22% annual growth trend, driven by internal migration, is supportive, while rent growth of 62.2% can lift returns but also pressure affordability. Compared with a low-turnover owner market, Waterloo needs conservative vacancy and maintenance assumptions.
Development Activity
Total DAs
303
Last 12 Months
65
YoY ChangeiYear-over-year change in DA lodgements
-9.7%
Avg DA CostiAverage estimated cost per DA in the past year
N/A
Monthly DA Lodgements
DA Categories
Schools in Waterloo
Open-register school locations for education access. This is not a school-quality ranking.
Demographics
Waterloo has a young, internationally connected population: the median age is 33, 7 years below the national comparison, and 59.3% of residents were born overseas, 37.7 percentage points above the national figure. University attainment is 58.3%, or 28.2 points higher than the national comparison. The average household has 1.8 people, 0.7 below the national level, helping explain the 53.4% concentration of two-bedroom homes and the 65.3% share of couples without children. English, Chinese and Irish are the largest listed ancestries at 3,540, 3,136 and 1,557 people. Mandarin is the most common listed language at 961 residents, followed by Cantonese at 221. A 45.6% turnover rate means local services need to cater to newcomers as well as established residents, compared with lower-turnover suburban settings.
Age Distribution
Bedrooms
Dwelling Structure
0.5%
Houses
8.1%
Townhouse
91.2%
Apartment
Tenure
Waterloo's housing stock is unusually concentrated: 91.2% of dwellings are apartments, 8.1% are semi-detached and just 0.5% are separate houses. Smaller formats dominate, with 31.5% of homes containing 0 or 1 bedroom and 53.4% containing 2 bedrooms. Tenure is renter-led at 74.1%, compared with 6.3% owned outright and 18.1% under mortgage. This structure supports a mobile inner-city market, but it also makes building quality, strata management and vacancy within individual complexes important. Weekly rent is $530 and the vacancy rate is 14.4%, so pricing power may vary more by building than in a detached-house suburb. Compared with nearby Alexandria and Zetland, Waterloo should be assessed through apartment-level sales, levies and layouts rather than a broad house-market lens.
Mortgage / mo
$2,500
Rent / wkiMedian weekly rent for new bonds (April to June 2026), NSW Rental Bond Board (DCJ). Census 2021 median: $530.
$1,050
Bond data Jun 2026 · houses $1,150 · units $1,050
HH Size
1.8
Personal Income / wk
$1,172
Vacancy Ratei% of dwellings unoccupied on Census night (ABS 2021)
14.4%
Unoccupied
1,349
Rent / IncomeiMedian rent as % of household income. Over 30% = housing stress
26.1%
Mortgage / IncomeiMedian mortgage as % of household income. Over 30% = housing stress
28.5%
Community Profile
Languages Spoken at Home
Ancestry
Household Composition
20.0%
Couples with children
65.3%
Couples, no children
11.7%
Single parent
3,776
Total families
Economy & Employment
Waterloo combines strong professional employment with an uneven resource picture. Professional/Tech leads at 21.0% and 1,563 workers, followed by Finance at 10.9% and 807, Healthcare at 10.1% and 754, Education at 7.3% and 542, and Retail at 7.0% and 520. Professionals number 3,746 and managers 1,618, helping explain household income at the 75.9th percentile and university attainment of 58.3%, 28.2 points above the national comparison. Yet the education and occupation index is in decile 9 while economic resources are in decile 1. That gap suggests skills and occupational advantage are stronger than household buffers, making rent and housing costs important. Unemployment is 6.2%, which also warrants attention.
Unemployment
6.2%
Labour Force
9,704
Unemployed
604
Source: ABS Census 2021
Socio-Economic Indexes (SEIFA)iABS index ranking suburbs from 1 (most disadvantaged) to 10 (most advantaged)
Full-time
67.7%
Part-time
22.6%
Participation
64.2%
Employed
9,100
Full-time and part-time are shares of the employed. Source: ABS Census 2021
Occupations
Top Industries
University
58.3%
Postgraduate
18.3%
Born Overseas
59.3%
Dwellings
8,037
Transport to Work
Waterloo suits residents who value compact living and local access. The suburb has 62.0% working from home, while 19.0% usually drive and 9.4% walk or cycle; public transport accounts for 7.7%. That pattern reflects an apartment-dense setting where short trips and home-based work can reduce car dependence, although transport preferences are not the same as service quality. School access includes Yudi Gunyi School, a government school for specific purposes, so families should check current enrolment zones and nearby options against the exact address rather than infer suitability from location alone. Waterloo's IRSAD is in decile 9, above its IRSD decile 3. With density at 14,444.8 people per sq km across 1.13 sq km, inspect noise, shared spaces, lighting and building access before choosing a home.
Drive
19.0%
Public Transport
7.7%
Walk / Cycle
9.4%
Work from Home
62.0%
Population Forecast
+3.22%/yr
(+283 people/yr)
EstablishedWaterloo's growth outlook is positive but not uniform. The forecast trend is 3.22% annually, with internal migration the primary driver, and population change across the wider area is 52.5% over 10 years. The shift trajectory is Mixed: rent growth reached 62.2%, the young share rose 3.1 points, and the gentrification signal is Active with a score of 45. These indicators point to a suburb attracting new residents and investment while experiencing competing pressures, rather than moving in a single direction. The separate gentrification stage is New development with a score of 0, reinforcing the importance of construction activity in the next phase. Compared with a flat-growth market, 3.22% annual growth supports continued demand, but apartment supply and 14.4% vacancy could moderate outcomes by building.
Historical + Forecast
Hamilton-Perry + Holt smoothing on ERP 2001-2025
Age Cohort Forecast
Primary Driver
Internal Migration
Net Overseas / yr
+21
Net Internal / yr
+664
Gentrification Signal
New development
National Ranking iPercentile rank among ~15,000 AU suburbs. 90% = higher than 90% of suburbs
How Waterloo compares to ~15,000 Australian suburbs
Frequently Asked Questions
Is Waterloo a good suburb to live in?
Waterloo can suit residents who prefer apartment living, inner-city access and a young, international setting. It has 91.2% apartments, a median age of 33 and 62.0% working from home. Check noise, strata costs and enrolment zones because high density and 74.1% renting create more building and turnover variation than a detached-house suburb.
What is the median house price in Waterloo?
Waterloo does not have a useful detached-house benchmark because only 0.5% of dwellings are separate houses, while 91.2% are apartments. For a purchase, compare recent sales in the same building, then review strata levies, defects, parking and floor plans rather than applying one suburb-wide house figure.
What schools are in Waterloo?
School access includes Yudi Gunyi School, a government school for specific purposes. With Waterloo covering 1.13 sq km and density at 14,444.8 people per sq km, families should check the exact address, current enrolment zones and nearby school options before committing, rather than infer school suitability from location alone.
Is Waterloo safe?
A simple yes or no would be misleading without a current incident check. Waterloo is compact at 1.13 sq km but very dense at 14,444.8 people per sq km, so experiences can vary by street, building entry and time of day. Review recent NSW Police information and inspect lighting, entrances and routes to transport before signing a lease or contract.
Is Waterloo good for property investment?
Waterloo can appeal to investors seeking a renter-heavy apartment market, with 74.1% renting and weekly rent of $530. The 14.4% vacancy rate and 65 development applications in 12 months call for conservative assumptions about letting time, competition and maintenance. The 3.22% annual growth trend is supportive, but building-level selection matters more than relying on suburb-wide demand.
How is Waterloo's population changing?
Population change across the wider area is forecast at 52.5% over 10 years, with an annual growth trend of 3.22% driven primarily by internal migration. Waterloo's median age is 33, 7 years below the national comparison, and the young share has risen 3.1 points. The shift trajectory is Mixed, with vacancy at 14.4%.
What languages are spoken in Waterloo?
Waterloo has an internationally connected language mix, with 59.3% of residents born overseas. Mandarin is the largest listed language at 961 residents, followed by Cantonese at 221, Russian at 185, Portuguese at 132 and Italian at 100. These languages are more relevant to local services than in less internationally connected suburbs.
What development is happening in Waterloo?
Development activity is substantial, with 65 applications over 12 months. Examples include a temporary building or exhibition home, office alterations and a place of public worship change or additions, so activity is broader than new dwelling construction alone. Buyers and renters should check construction timing, noise, access and future outlook, especially where 91.2% of homes are apartments and vacancy is 14.4%.
How to read these comparisons
Phrases like "above the national average" reference the unweighted median across Australian suburbs with more than 1,000 residents, not population-weighted national figures. Suburb-level medians are more useful for ranking suburbs against each other; ABS census headlines are population-weighted (so dominated by Sydney and Melbourne) and can read very differently.
Current baseline (refreshed 2026-05-10): median age 40, university-educated 30.1%, born overseas 21.6%, average household size 2.5 people.
Data sources: ABS 2021 Census (demographics, income, tenure), state education open registers (school locations), state Crime Statistics agencies (offences), council DA portals (development applications). Population forecasts use a Hamilton-Perry cohort model calibrated to ABS ERP.
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